Flint Mayor Karen Weaver, right, and City Administrator Natasha Henderson address questions about adding supplemental phosphates to the city's water during a news conference, Thursday, Dec. 10, 2015 at City Hall in Flint, Mich. The city says phosphates are being added to drinking water in an effort to help deal with problems with lead caused by the city's earlier use of Flint River water. (Jake May/The Flint Journal-MLive.com via AP) LOCAL TELEVISION OUT; LOCAL INTERNET OUT; MANDATORY CREDIT

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FLINT, Mich. (AP) — Flint’s mayor has declared a state of emergency due to problems with the city’s water system caused by using water from the Flint River, saying the city needs more federal help.

Karen Weaver announced the declaration Monday night and said the move intends to help raise awareness of continuing problems. She said damage to children caused by lead exposure is irreversible and that the city will need to spend more on special education and mental health services as a result.

“I am requesting that all things be done necessary to address this state of emergency declaration, effective immediately,” Weaver told City Council.

Exposure to lead can cause behavior problems and learning disabilities in young children.

Genesee County earlier declared a public health emergency. Officials have told Flint residents not to drink unfiltered tap water.

Flint switched from Detroit’s water system last year to Flint River water in a cost-cutting move while under state emergency financial management. The Flint River was supposed to be an interim source until the city could join a new system getting water from Lake Huron.

But residents complained about the taste, smell and appearance of the water. Officials maintained the water met safety standards, but children were found to have elevated levels of lead in their blood and it was determined that corrosive river water was drawing lead from aging pipes.

Flint returned to Detroit’s system in October.

Weaver was elected in November, unseating the incumbent mayor who led the city during the public health emergency and blamed state and federal agencies for the city’s water problems. Weaver had promised while campaigning to issue an emergency declaration.

City Council members were divided about what the declaration will mean, The Flint Journal reported. Councilman Scott Kincaid said it’s needed to seek more aid, noting that “We have to prove … that we need resources.”

Councilman Josh Freeman said he doesn’t want residents to expect immediate help with the city’s water infrastructure, including lead service lines, because of the declaration. He said the declaration doesn’t fix the problem.

“We need to find a way to actually fix the problem,” Freeman said.

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